使用XML与远程服务器进行交互

 1 protected string SendRequest(string strXML) { 
 2     string str = ""; //双方协定的XML格式 
 3     Encoding encoding = Encoding.UTF8; //接收页面　　　　　　　
 4     string strUrl = "http://localhost:14360/WebSite16/Handler.ashx"; 
 5     byte[] data = encoding.GetBytes(strXML); //准备请求... 
 6     HttpWebRequest myRequest = (HttpWebRequest)WebRequest.Create(strUrl); 
 7     myRequest.Method = "POST"; 
 8     myRequest.ContentType = "text/xml;charset=utf-8"; 
 9     myRequest.ContentLength = data.Length; //身份认证，特别注意，参数用户名，密码 
10     NetworkCredential cred = new NetworkCredential("wcadmin", "wcadmin"); 
11     myRequest.Credentials = cred; //在信息请求头部加入验证信息，不然验证不通过 
12     myRequest.PreAuthenticate = true; 
13     Stream newStream = myRequest.GetRequestStream(); //发送数据 
14     newStream.Write(data, 0, data.Length); 
15     newStream.Close(); 
16     WebResponse response = myRequest.GetResponse(); 
17     Stream resStream = response.GetResponseStream(); 
18     StreamReader sr = new StreamReader(resStream, System.Text.Encoding.UTF8); 
19     str = sr.ReadToEnd();//接收返回值，返回值可以是xml 
20     resStream.Close(); 
21     sr.Close(); 
22     return str; 
23 }

 1 public bool CheckUser(string token) {
 2     bool flag = false;  //验证成功与否的标识
 3     //向服务器发出验证XML信息
 4     string requestXML = "";
 5     requestXML = "<?xml version=\"1.0\" encoding=\"UTF-8\"?><ecity><msgname>XXXXXX</msgname><msgversion>1.0.0</msgversion><transactionid>000000</transactionid><timestamp>"
 6         + DateTime.Now.ToString("yyyyMMddhhmmss") + "</timestamp><msgsender>abc</msgsender><svccont><token>"+token+"</token></svccont></ecity>";
 7 
 8     //发送验证的XML并获取返回的XML信息
 9     string responseXML = "";
10     responseXML= SendRequest(requestXML);
11 
12     //解析XML信息
13     XmlDocument xmlDoc = new XmlDocument();
14     xmlDoc.LoadXml(responseXML);
15     XmlNodeList nodes = xmlDoc.SelectNodes("/ecity/msgname");
16     if (nodes.Count > 0)
17     {
18         //首先判断是否接口正确
19         if (nodes[0].InnerText.Trim().ToLower() == "getuserinforesp")
20         {
21             nodes = xmlDoc.SelectNodes("/ecity/result/rspcode");
22             if (nodes.Count > 0)
23             {
24                 //表示验证通过
25                 if (nodes[0].InnerText.Trim() == "0")
26                 {
27                     flag = true;
28                 }
29             }
30         }
31     }
32 
33     return flag;
34 }